Video games, the pinnacle of immediate positive feedback...So why not misbehavior?

Why isn't there any quick feedback for the player/s when they rightly report someone.

I understand the logistics of it. Fine line blah blah.

Right now the only thing we get from some one who truly abuses the game (I.e. a third of the players who end up last pick)

We demand blood. Violators of the summoners chode should be punished faster and with more credit given to the players.

I know you got smart people working on this but I've been playing for 2 years and have yet to see anything more than a marginal improvement.